Diurnal and seasonal variation of the surface ozone in Spain |
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| Affiliation: | 1. Universidad de Vigo. Facultad de Ciencias de Orense. Campus de As Lagoas. 32004. Orense, Spain;2. Departamento de Fisca del afire. Universidad Complutense. Ciudad Universitaria, 28040, Madrid, Spain;3. Departamento de Estadistica e Investigación Operativa. Universidad Complutense. Campus de Somosaguas, 28223, Madrid, Spain;1. rdscientific, Newbury, Berkshire, RG14 6LH, United Kingdom;2. David D. Parrish, LLC, Boulder, CO, USA;1. Physical Sciences and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal, Saudi Arabia;2. National Center for Environmental Technology, King Abdulaziz City for Science and Technology (KACST), Riyadh, Saudi Arabia;3. Centre for Earth, Ocean, and Atmospheric Sciences, University of Hyderabad, Hyderabad, India |
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| Abstract: | In this study we present the diurnal and monthly variations in the surface ozone concentrations of five Spanish remote stations belonging to the EMEP network. In two of the stations, a maximum in the afternoon is presented because of the turbulent mixing producing appreciable downward ozone flux. In other two stations no maxima are produced. In one of them this result is due to the strong westerly winds that dominate the air flow and the low solar insolation. In the other station the reason are two phenomena: the mountain induced flow regime that produce high concentrations during the night and the photochemical production that results in high concentrations during the afternoon.Four of the five considered stations show the typical natural spring maximum. This maximum extends into summer in two of the stations. In one of the stations the maximum is reached in summer and it is due to the proximity of the station to strong nitrogen oxide emission areas. |
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